package com.xn.app.muying.util;

import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;
import android.widget.ListView;

/**
 * 计算listview高度
 * Created by Administrato on 2017/8/6.
 */

public class GetListviewHight {

    /**
     *   
     *      * 重新计算ListView的高度，解决ScrollView和ListView两个View都有滚动的效果，在嵌套使用时起冲突的问题  
     *      * @param listView  
     *      
     */
    public void setListViewHeight(ListView listView) {
// 获取ListView对应的Adapter    
        ListAdapter listAdapter = listView.getAdapter();
        if (listAdapter == null) {
            return;
        }
        int totalHeight = 0;
        for (int i = 0, len = listAdapter.getCount(); i < len; i++) {// listAdapter.getCount()返回数据项的数目    
            View listItem = listAdapter.getView(i, null, listView);
            listItem.measure(0, 0);// 计算子项View 的宽高    
            totalHeight += listItem.getMeasuredHeight();// 统计所有子项的总高度    
        }

        ViewGroup.LayoutParams params = listView.getLayoutParams();
        params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
        listView.setLayoutParams(params);
    }
}
